baber/WOPTO huggingface dataset:
Patent KR-20020052721-A (KR)
Title: Apparatus for cutting the filter for filtering the roll coolant
Inventor: JUNG HYEON CHEOL
IPC: B09B3/00
Filed: 2000-12-26
Abstract: PURPOSE: A device for cutting a filter for a lubricating oil of a rolling mill is provided to prevent the generation of any accidents and the operation failure of an incinerator by automatically cutting the filter. CONSTITUTION: The device for easily cutting a filter for a lubricating oil used to lubricate and cool a rolling mill with being circulated between a reservoir tank and the rolling mill is comprised of a transfer mechanism for transferring a waste filter(1) to a waste processing part; and a cutter installed at the lower side of the transfer mechanism for cutting the waste filter into a certain length. The transfer mechanism consists of a fixed roller and a movable roller spaced each other to form a waste filter passage.
Patent KR-20020052745-A (KR)
Title: Melt reaction spray casting device
Inventor: AHN SANG HO
IPC: B22D17/00
Filed: 2000-12-26
Abstract: PURPOSE: A melt reaction spray casting apparatus is provided to spray cast high value-added alloy green compact without additional facility cost using an existing spray casting apparatus by adding only one melting furnace to the existing spray casting apparatus. CONSTITUTION: In a spray casting apparatus manufacturing an alloy green compact(10) by spraying and laying up molten metals on the rotation substrate(11) positioned inside a spray casting chamber using high pressure gas, the melt reaction spray casting apparatus comprises two melting furnaces(1a,1b) melting different molten metals; a tundish(3) in which reaction melt(4) is formed by mixing and reacting the different molten metals flown out from the lower part of the two melting furnaces(1a,1b); a gas ejection unit(6) making the reaction melt(4) flown out from the tundish in a liquid-drop spray(9) form; and a rotation substrate(11) which is rotated or moved up and down by a rotation substrate driving unit(12) to form the alloy green compact(10) by laying up falling liquid-drop spray(9).
Patent KR-20020055874-A (KR)
Title: Ozone Generator with Stripe Type Electrode
Inventor: JUNG SEONG JIN
IPC: C01B13/11
Filed: 2000-12-29
Abstract: PURPOSE: An ozone generator equipped with stripe type electrode is provided, which can generate ozone with high efficiency by getting rid of overlapping discharging region thus attaining optimum discharge area in a given area and can reduce electrode area thus attaining optimum discharge current for ozone generation and dissociation. CONSTITUTION: The generator comprises a main body(10), a reactor(30), a supporter(20), a spacer(33) and a guide(34). In the rectangular main body(10) having an inlet(11) at one side and an outlet(12) at the other side, the supporter(20) made of frame members(21) and having gas inlet and outlet(21a,21b) is set at almost the center. A set of reactors(30) is set above and beneath the supporter(20), and a reactor(30) is composed of an inducing electrode(31), a dielectric substance(32), a spacer(33), a guide(34) and a discharge electrode(35) of stripe type from bottom to top, the inducing electrode being grounded for safety and the width(d'), gap(de') of electrode being 0.5 mm, 0.8 mm and the ratio of de'/d' being 1.6.
Patent KR-20020055999-A (KR)
Title: Method for Fabricating of Liquid Crystal Display
Inventor: KIM SEONG HUI
IPC: G02F1/136
Filed: 2000-12-29
Abstract: PURPOSE: A method of fabricating a liquid crystal display is provided to prevent electrical interference of a pixel electrode according to a semiconductor material by employing an exposure process using negative photoresist. CONSTITUTION: A gate insulating layer(27) is formed on a transparent substrate(21). A semiconductor layer(29) is formed on the gate insulating layer. Negative photoresist(26) is coated on the semiconductor layer and selectively exposed using a predetermined mask pattern(24). The transparent substrate on which the negative photoresist is coated is heat-treated. Negative photoresist including impurities is removed using a developer and, simultaneously, the exposed negative photoresist is developed to form a photoresist pattern. The semiconductor layer is patterned using the photoresist pattern.
Patent KR-20010022956-A (KR)
IPC: A61K31/192
Filed: 1998-08-14
Abstract: 본 발명은 에스트로겐-의존성 질병 및 장애의 치료방법에 관한 것으로서, 보다 상세하게는 에스트로겐-의존성 암, 특히 유방암을 항에스트로겐제로 치료하는 방법에 관한 것이다.
Patent KR-20010024235-A (KR)
Title: 플라잉 광학 헤드를 위한 조리개
IPC: G11B7/00
Filed: 1998-01-26
Abstract: 매체(118)에 대한 광학 데이터 동작을 수행하기 위한 광학 헤드(100)는 슬라이더 몸체(154)와 적어도 하나의 렌즈(150)를 포함한다.  광 전송을 차단하기 위한 조리개(158)는 슬라이더 몸체(154)와 렌즈(150) 사이에 위치한다.  조리개(158)는 투명 영역을 둘러싸는 오페이크 층을 포함한다.
Patent KR-20010015637-A (KR)
Title: 폴리머 절단 장치 및 방법
IPC: B29B9/06
Filed: 1997-09-29
Abstract: 절단날이 헤드의 원주 방향 주연부 상에 구비되고 절단날이 폴리머를 슬라이싱하기보다는 전단시키는 회전식 절단기 헤드가 구비된 폴리머 절단기가 기재되어 있다.  회전 헤드 상의 나이프날은 70 °이상의 절단각을 갖는다.  장치는 열가소성 폴리머를 절단하는 데에 특히 유용하며 폴리머 알갱이 또는 펠릿을 마련하기 위해 사용될 수 있다.
Patent KR-20010015729-A (KR)
IPC: C08F4/659
Filed: 1999-08-03
Abstract: 하기 단계를 포함하는 헤테로상 폴리올레핀 조성물의 제조 방법: 
     ⅰ) 지글러-나타 촉매의 존재 하에, a) 결정성 프로필렌 또는 에틸렌 중합체를 형성하기 위한 프로필렌의 중합화, 및 b) 탄성 공중합체를 형성하기 위한 에틸렌과 C 3 -C 10 α-올레핀의 공중합화를 수행하는 단계; 
     ⅱ) 중합화 단계 (ⅰ) 에서 수득한 중합체를 하기와 임의의 순서로 접촉시키는 처리 단계: 
     a) 상기 단계 (ⅰ) 에 존재하는 촉매를 불활성화시킬 수 있는 화합물; 및 
     b) 전이금속 M, 및 π결합에 의해 금속 M 과 배위결합된 하나 이상의 리간드를 함유하는 화합물 (Ⅰ) 과 조촉매 (Ⅱ) 를 접촉시켜서 수득한 촉매 (2); 
     ⅲ) 단계 (ⅱ) 에서와 같이 처리된 중합체 및 촉매 (2) 의 존재 하에 에틸렌 및 C 3 -C 10 α-올레핀을 중합화하는 공중합화 단계.
Patent KR-20010041323-A (KR)
Title: 승강로 측벽과 엘리베이터 카 사이에 위치된 구동 모터를 갖는 엘리베이터 시스템
IPC: B66B11/04
Filed: 1999-02-19
Abstract: 엘리베이터 시스템은 주변 구축물에 의해 형성된 승강로를 포함한다.  상기 승강로에는 엘리베이터 카와 평형추가 위치되며, 구동 모터는 승강로 측벽과 엘리베이터 카 사이에 위치된다.  상기 구동 모터는 적어도 하나의 평탄 로프 또는 벨트를 통해 엘리베이터 카와 평형추를 구동가능하게 결합 및 현수한다.
Patent KR-20010092258-A (KR)
Title: 전류원에 전원을 공급하는 정적 변환기의 제어 방법 및 장치
IPC: H02P27/06
Filed: 1999-03-19
Abstract: 본 발명은 주기 클록 T에 의해 정의되는 동기화 시간 t(i)을 생성하고; 전류원의 상태를 나타내는 1 이상의 값을 측정하며; 측정값으로부터 적어도 제어값 c(t)과 이의 편차 및, 시간 t(i)에서의 정적 변환기 구성의 경우 이후의 동기화 시간 t(i)+T에서 각각 제어값이 가질 수 있는 값 cp (t(i)+T)를 연산하고; 각각의 제어값 cp (t(i)+T)과 설정값을 비교하며; 이러한 정적 변환기 구성이 각각의 제어값과 이후의 동기화 시간 t(i)+T에 해당하는 설정값의 차를 최소화 할 수 있는 지를 측정하고; 시간 t(i)+T에서의 구성 Cc(t(i)+T)에 해당하는 고유 제어값의 시간 t(i)+T에서의 편차를 연산하며; 고유 제어값과 해당 설정값 사이의 시간 t(i)+T에서의 차를 최소화 할 수 있는 이들 시간 t(i)과 t(i)+T 사이의 스위칭 시간 t(i)+tcom을 측정하고; 시간 t(i)+tcom에서 스위칭 하는 정적 변환기를 제어하는 것으로 구성되는, 다상 전류원(2)과 접속된 정적 변환기(1)를 제어하는 방법에 관한 것이다.
Patent KR-20010043222-A (KR)
IPC: A61F13/472
Filed: 1999-04-30
Abstract: An absorbent interlabial device worn by female wearers for catamenial purposes, incontinence protection, or both, is disclosed. The absorbent interlabial device has at least one body-contacting surface which comprises a substance that contacts the wearer's body for assisting the interlabial device in staying in place in the desired position in the interlabial space. The substance can be either adhesive or non-adhesive. In embodiments in which the substance is non-adhesive, it may have no initial tack so that it will not stick to the wrong portions of the wearer's body when the device is placed between the labia. Non-adhesive substances include moisture-activated substances which become viscous and develop a tack when contacted by relatively small amounts of moisture.
Patent KR-20010052385-A (KR)
Title: 약물복합체
IPC: A61K47/48
Filed: 1999-05-21
Abstract: 하기의 식으로 표시되는 DDS화합물로서 유용한 약물복합체: 
     A-R-NH-Y-CH 2 -O-CO-Q 
     상기 식에서, 
     A는 약물담체인 고분자를 나타내고; 
     R은 1개의 아미노산을 포함하는 스페이서 또는 펩티드 결합한 2 내지 8개의 아미노산을 포함하는 스페이서를 나타내며; 
     Y는 치환기를 가지고 있어도 좋은 페닐렌기를 나타내고; 및, 
     Q는 항종양제 등의 의약화합물의 잔기를 나타낸다. 
     항종양제나 항염증제 등의 의약화합물을 부위 선택적으로 빠르게 유리할 수 있어, 기대되는 약효를 확실하게 발휘할 수 있다.
Patent KR-20010052887-A (KR)
Title: 안지오스타틴-결합 단백질
IPC: A61P35/00
Filed: 1999-06-11
Abstract: 본 발명은 안지오스타틴 수용체로서 작용할 수 있는 단백질의 서열 및 이의 핵산 서열을 제공한다.  또한, 본 발명은 스크리닝 방법에서의 이의 용도에 관한 것이며, 이에 의해 안지오스타틴과 동일하게 유리한 항-맥관형성 특성을 나타내는 신규한 물질이 개발된다.
Patent KR-20010053311-A (KR)
Title: 폴리시클릭 공중합체 조성물
IPC: G03F7/039
Filed: 1999-06-18
Abstract: 본 발명은 1종 이상의 폴리시클릭 단량체와 1종 이상의 아크릴 단량체로부터 중합된 반복 단위를 함유하는 공중합체를 제공한다.  본 발명의 공중합체는 VIII족 전이 금속 촉매의 존재하에 첨가중합반응에 의해 형성된다.  본 발명의 공중합체는 중합체 주쇄에 부속되어 있는 히드로카르빌 및/또는 작용성 치환기를 함유한다.  본 발명의 일구체예로서, 본 발명의 공중합체는 펜던트 에스테르 치환체를 함유하는 산에 불안정한 그룹을 함유한다.  본 발명의 공중합체는 이미지화 방사선에 민감한 레지스트 물질로서 유용하다.
Patent KR-20020064806-A (KR)
Title: Inductively coupled rf plasma source
Inventor: KONDO TOMOYASU
IPC: H01L21/20
Filed: 2001-02-03
Abstract: PURPOSE: An inductively coupled radio frequency(RF) plasma source is provided to improve ununiformity in processing a base material by erasing a radial electric field generated between plasma and an antenna coil. CONSTITUTION: The inductively coupled RF plasma source is composed of a plurality of one-revolution antenna coils(9). The inductively coupled RF plasma source has the first end portion in which each antenna coil is connected to an RF power source(10) along the main circumferential sidewall of a plasma generation chamber(8), and the second end portion connected to a ground voltage. The inductively coupled RF plasma sources are disposed in a longitudinal direction of the plasma generation chamber at regular intervals. The first end portion of each one-revolution antenna coil is disposed in the main circumferential direction, confronting the other at the same angle.
Patent KR-20020065667-A (KR)
Title: Nontoxic Novel Salmonella and Uses Thereof
Inventor: JUN JEONG HUN
IPC: C12N1/20
Filed: 2001-02-07
Abstract: PURPOSE: Attenuated Salmonella bacteria and the use thereof are provided, thereby the attenuated Salmonella bacteria can be useful as a medicine or an alive vaccine for prevention of a disease associated with Salmonella bacteria. CONSTITUTION: The attenuated Salmonella bacteria show acid sensitivity under anaerobic condition, in which the attenuated Salmonella bacteria contain the aatA::MudJ mutation gene and is deposited to KCTC by the accession number of KCTC 0931BP. A pharmaceutical composition for vaccination against the infection of Salmonella bacteria contains the attenuated Salmonella bacteria showing acid sensitivity under anaerobic condition and a pharmaceutically acceptable carrier, in which the attenuated Salmonella bacteria contain the aatA::MudJ mutation gene and are deposited to KCTC by the accession number of KCTC 0931BP; the pharmaceutical composition is administrated orally or intravenously; and the amount of Salmonella bacteria administered in one dosage is 108 or less CFU.
Patent KR-20010078783-A (KR)
Title: Process for Producing Aminodiphenylamines
Inventor: BRILL ADOLF
IPC: C07C209/10
Filed: 2001-02-08
Abstract: PURPOSE: Provided is a method for producing an aminodiphenylamine useful for leading a product from aromatic amine and nitrohalobenzene to be obtained in high purity and good yield when conducting hydrogenation of the product. CONSTITUTION: The method comprises reacting aromatic amine and nitrohalobenzene in the presence of a palladium catalyst and a basic material and then hydrogenating the obtained product with hydrogen to provide the aminodiphenylamine. The used nitrohalobenzene is featured by having nitro radical on a para-position relative to the halogen residual group. The used aromatic amine is selected from a group consisting of aniline, o-, m- or p-toluidine, 4-ethylaniline, 4-butylaniline, 4-isopropylaniline, 3,5-dimethylaniline or 2,4-dimethylaniline. The nitrohalobenzene and the amine are contained in a mole ratio of 1:1-10mole.
Patent KR-20020069778-A (KR)
Title: Chatting with Internet Album
Inventor: LEE BYUNG UK
IPC: G06F17/00
Filed: 2001-02-27
Abstract: PURPOSE: A video chatting without a camera is provided to enable a user to chat while easily seeing a face of a counterpart anywhere and anytime by using a photo of an Internet album previously constructed in a web server. CONSTITUTION: The user registers to a web site by inputting the personal information after accessing to the web site and inputting an ID of the user through the Internet. The user carries out the chatting in real time by selecting the counterpart. The web server provides the video information to the counterpart by making a computer find out an ID of the counterpart from the photo previously constructed in the web server. The user enjoys the video chatting anywhere and anytime by using any computer without an additional expense for buying a computer camera.
Patent KR-20020070714-A (KR)
Title: Finger-pressure device of a seat cushion
Inventor: AHN JUN HYEONG
IPC: B60N2/90
Filed: 2001-03-02
Abstract: PURPOSE: A pressurizing unit of a seat cushion is provided to get acupressure effect by making a pressurizing body push the region of the hips during some time if a passenger sits on a seat for some time. CONSTITUTION: A pressurizing unit of a seat cushion comprises a pair of guides having limit switches(13) installed at both ends, with installed at both edges of a cushion(100), a shuttle(20) driving back and forth, with coupled with the guides by rack-pinion coupling by the driving of a driving motor(23), a controller controlling the direction of rotation and time of the driving motor, and a pressurizing body performing acupressure action by the shuttle, with installed to the upper part of the cushion. The pressurizing body comprises a bracket(42) having a pressure sensor(41) on the top, and plural pressurizing rods(43) elastically supported with penetrated through the top of the bracket. The riding comfort of the vehicle is improved by the acupressure effect when sitting on a seat of a passenger is detected.
Patent KR-20010091922-A (KR)
Title: Active matrix display device and inspection method for the same
Inventor: IKEDA MASATO
IPC: G09F9/30
Filed: 2001-03-05
Abstract: PURPOSE: To provide a liquid crystal cell and an inspection method therefor for efficiently inspecting picture quality of the liquid crystal cell before a driver IC is connected therewith. CONSTITUTION: The liquid crystal cell 11 has circuits 4, 5 for inspection. The circuits for inspection comprise each scanning signal wiring 11 or TFTs 22 for inspection connected with each signal wiring 12, inspection terminals 31-35 to be connected with the scanning signal wiring 11, and inspection terminals 41-45 to be connected with the signal wiring 12. Each inspection terminal is connected with multiple inspection TFTs 22. A display area is split into multiple blocks, and each block is connected with a set of scanning side inspection terminals and a set of signal side inspection terminals. Scanning signal wiring and signal wiring for a specific area are allocated to each block. Since multiple signal lines are properly put together with the TFTs and terminals for inspection, necessary image quality inspection can be carried out without using a multi-pin probe.
Patent KR-20010067687-A (KR)
Title: Powdered laver manufacturing machines.
Inventor: MOON YU HWAN
IPC: A23L17/60
Filed: 2001-03-07
Abstract: PURPOSE: Provided is a method for manufacturing powdered seaweed which can be used in cooking various dishes such as stew and making health foods, and consequently contributing the increase in annual income of fishermen. CONSTITUTION: The method for manufacturing powdered seaweed is characterized by the following steps of: i) inserting crude seaweed into a washer (1) with water being flowed and washing the crude seaweed by operating fans (4); ii) sending the seaweed to a dehydrator (5) for dehydration; iii) cutting the dehydrated seaweed with cutters (8); iv) drying the cleaved seaweed in a dryer (9) by infrared wind (10); and v) sending the seaweed to a masher (11) while seasonings (12)(13) are being added to manufacture minute powdered seaweed.
Patent KR-20020071996-A (KR)
Title: Method of Map Information Service Using Mobile Telephone
Inventor: JUNG DAE HO
IPC: H04B7/24
Filed: 2001-03-08
Abstract: PURPOSE: A method for providing map information in a mobile communication terminal is provided to receive continuous moving picture information by expanding a PUF(Power Up Function), a position information system such as a GPS(Global Positioning System), and a video compression protocol, compressing map information, and transmitting compressed map information. CONSTITUTION: It is retrieved whether an input exists in a map information menu of a video mobile communication terminal through a user interface(401). In the case of retrieving the position of a terminal user(402), a position retrieval menu of a terminal is pushed for requesting a PUF to a base station and performing a position trace method using the PUF(403). Position information of the terminal user is composed as a control command data packet using the PUF and the composed control command data packet is transmitted to a video information server(404). Information in which position information of the terminal user and surrounding map information are combined is received from the video information server(405). The terminal receives video map information and displays received video map information(406). If an end key is inputted(407), the terminal stores received video map information(408).
Patent KR-20020072122-A (KR)
Title: The piston actuater for survival airgun
Inventor: KIM SANG PIL
IPC: B05B9/01
Filed: 2001-03-09
Abstract: PURPOSE: A piston drive for a survival air gun is provided to manufacture the survival air gun which reduces manufacturing cost, demonstrates performance equal to conventional technology, and is safe by adopting a linear motor type driving method in which a straight-line alternating motion is done using permanent magnet and coil. CONSTITUTION: The piston drive for a survival air gun comprises a cylinder(600) having an exhaust nozzle(800) for compressed air; a piston(300) which is retreated to suck air into the cylinder(600) and advanced to jet the compressed air; a permanent magnet(100) and an induction iron core(101) which are installed in the rear to retreat and advance the piston(300) so as to form a magnetic field; and a conversion switch circuit(400) capable of integrating an operating coil(200) which is reciprocated back and forth by electric power supplied with the piston(300) and converting direction of an electric current supplied.
Patent KR-20020073946-A (KR)
Inventor: KIM YEONG SIK
IPC: G11B11/12
Filed: 2001-03-17
Abstract: PURPOSE: A lens for an optical recording and reproducing system is provided to reduce the volume and the thickness occupied by the optical system for simplifying the assembling of the optical system into the entire system, wherein the recording and reproducing of information is carried out by using a single focusing lens without any objective lens. CONSTITUTION: A lens for an optical recording and reproducing system includes a light incident surface(30b) as a Schmidt Corrector surface for introducing light(35) generated from a light source, a first reflection surface(30c) for reflecting the light passing through the light incident surface, and a second reflection surface(30a) for reflecting the light reflected against the first reflection surface again, wherein the first and second reflection surfaces coated with a reflection material and the second reflection surface is spherical.
Patent KR-20020075499-A (KR)
Title: Customer information managing and providing system for marketing and method thereof
Inventor: JU SANG PIL
IPC: G06Q99/00
Filed: 2001-03-24
Abstract: PURPOSE: A system and a method for managing and providing customer information for marketing are provided to realize customer information-based marketing by managing and providing the customer information for marketing in the communication network access environment. CONSTITUTION: An operational customer database processing unit(104) collects customer information from an on-line source system(110) and an off-line source system(120), stores the customer information as raw data, and furnishes the customer information to the on-line and off-line source systems. An analyzing customer database processing unit(106) classifies the customer information stored in the operational customer database processing unit as an analyzable format and stores the classified information. A web server(102) provides the customer information to more than one user terminals(130_1-130_n) through a communication network such as the Internet.
Patent KR-20020076778-A (KR)
Title: Up-grade of broadcasting satellite receiver method
Inventor: CHO SANG GYU
IPC: G06F9/445
Filed: 2001-03-30
Abstract: PURPOSE: A method for upgrading a satellite broadcasting receiver is provided to improve the upgrading speed of a digital satellite broadcasting receiver to minimize a period of data broadcasting time required for upgrading the receiver. CONSTITUTION: A satellite broadcasting program is transmitted to a satellite broadcasting station, and the broadcasting station broadcasts data with respect to upgrade of the program in advance(S31). A satellite broadcasting receiver prepares the upgrade while the data is broadcasted, and the broadcasting station broadcasts the upgrade program in unit data and the receiver receives the program(S32). The unit program data is collected and the first effectiveness is confirmed, to register data failed in the first effectiveness test as being in unreceived state and to judge if all the unit data that passed the test is collected(S33). The second effectiveness of the collected program data is confirmed and the upgrade program is installed(S34).
Patent KR-20010074211-A (KR)
Inventor: JUNG IN U
IPC: A01C5/04
Filed: 2001-04-10
Abstract: PURPOSE: A digging device for seeding transplant is provided to dig a holes for transplanting the seeding with weak power, as a worker can adjust a size of the halls by changing a digging tool according to a kind of the seeding. CONSTITUTION: If a worker puts on a handle(1) with two hands, the handle(1) reaches to a breast. If the worker treads a footstool(4), the digging device returns to an original position by a spring(5). That is, the worker treads the footstool(4) and a cam(6) converting a linear movement into a rotating movement is rotated with 45 angle by a cam fixing bolt(6-1), therefor hall is made and vinyl covered the ground is cut. A fixed panel(8) holds the vinyl to maintain a flat state. A ruler(11) adjusts the distance when the worker digs the halls by maintaining a constant distance. The material of a cutting tool(7) is MS45C and the tip of the cutting tool(7) has an arrow shape.
Patent KR-20020012113-A (KR)
Title: methods of polishing, interconnect-fabrication, and producing semiconductor device
Inventor: HOMMA YOSHIO
IPC: H01L21/4763
Filed: 2001-04-24
Abstract: PURPOSE: To provide a technology for suppressing scratch, peeling, dishing and erosion and for performing polishing at high speed. CONSTITUTION: Polishing is performed by using a polishing liquid, which includes oxidized material, phosphoric acid, organic acid, protection film forming agent and water.
Patent KR-20020083351-A (KR)
Title: Wireless apparatus for helmet
Inventor: SEO MIN SEON
IPC: H04M1/05
Filed: 2001-04-27
Abstract: PURPOSE: A radio with a helmet is provided to install a removable transceiving radio in a helmet, and to connect a controller with the radio to display an operating state, then to install the controller in one end of the helmet, thereby wirelessly transceiving signals in the state of wearing the helmet. CONSTITUTION: A controller(2) built with a battery is installed in an upper middle of a helmet(1). Earphones(3) are connected on both sides of the controller(2) to be located on both sides of the helmet(1). A speaker phone(4) is installed in one side of the controller(2). An LCD(5) is firmly fixed into a lower part of a peak(6) of the helmet(6) by connecting the LCD(5) with a front of the controller(2). A residue display, a beep sound display, and a used channel display are formed on the LCD(5) to connect with the controller(2). A volume controller, a channel selector, and a lock switch are connected with a power switch, respectively.